2018Final results
2018 election for Arizona Legislative District 11
Arizona State Senate · Arizona
Vince Leach (R) won with 54.5% of the vote, defeating Ralph Atchue (D) by 10.2 points.
Vince LeachRepublican · winner
54.5%53,232
Ralph AtchueDemocrat
44.3%43,273
Mohammad ArifGreen
1.1%1,076
97,660 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET